java ÕÒ³ö4λÊýµÄËùÓÐÎüѪ¹íÊý×Ö
/**
* ÕÒ³öËÄλÊýËùÓеÄÎüѪ¹íÊý×Ö
* ÎüѪ¹íÊý×Ö£ºÎ»ÊýΪżÊýµÄÊý×Ö¿ÉÒÔÓÉÒ»¶ÔÊý×ÖÏà³Ë¶øµÃ£¬Õâ¶ÔÊý×Ö°üº¬³Ë»ýÒ»°ëµÄλÊý
* È磺1260 = 21*60
*/
public class Vampire {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String s="";
for(int i=1; i<10; i++){
for(int j=0; j<10; j++){
s += (10*i+j)+" ";
}
}
System.out.println(s);
String[] arr = s.split(" ");
System.out.println("Á½Î»ÊýµÄ¸öÊýΪ£º"+arr.length);
int a,b;
int count=0;
for(int j=0; j<arr.length; j++){
for(int k=0; k<arr.length; k++){
a = Integer.valueOf(arr[j]).intValue();
b = Integer.valueOf(arr[k]).intValue();
//ΪÄÜÒÔÁ½¸ö0½áβ
if(a*b<10000 && a*b>1000 && (a*b)%100!=0){
count++;
System.out.print(arr[j]+"_"+arr[k]+" ");
}
}
System.out.println();
}
System.out.println("the total number is "+count); //6370
}
}
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package test;
import java.lang.reflect.Method;
public class InvokeTest {
/**
*
* main ·½·¨
* @param args
* void
*/
public static void main(String[] args) {
try {
&nbs ......
Database
MySQL
PostgreSQL
Firebird(suitable for embedded database)
HSQLDB(160K)
DB Tie
Hibernate
Ibatis
JDO
OSCache
JBossCache
Business Tie
Spring
UI Tie
Structs
JSF
Tapestry
Webwork
Flex
DWR(Ajax
Framework)
ZK(Ajax
Framework)
Dojo(Ajax
Framework)
Development Tools
......
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public class Fibonacci {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
NumOfFibonacci(9);
}
public static int MyFibonacci(int i){
if(i>0) {
if(i == 1)return 1;
if(i == 2)return 1;
else return MyFibonacc ......